Ejector.



PATENTED FEB; 6, 1906.

` G. A. DRYER.

EJECTR. APPLIUATION FILED MAY 2s, 1905 A UNITED STATES PATENT OFFICE.

EJECTOR.

Specification of Letters Patent.

Patented Feb. 6, 1906.

Application filed May 23, 1905. Serial No. 261,734.

To all whom, it may concern,.-

Beit known that I, CHARLES A. DRYER, a citizen of the United States, and a resident of Champaign, in the county of Champaign and State of Illinois, have invented a new and Improved Ejector-Pump, of which the following is a full, clear, and exact description.

. This invention relates to improvements in pumps especially designed for driven tubular wells, the object being to provide a very simple and novel form of head for receiving and discharging fluid under pressure into the welltube to elevate the water therein.

I will describe an ej coter-pump embodying my invention and then point out the novel features in the appended claim.

Reference is to be had. to the accompanying drawings, forming a part of this speciiication, in which similar characters of reference indicate corresponding parts in both the figures.

Figure 1 is a sectional elevation of a pump embodying my invention, and Fig. 2 is a section on the lines r of Fig. 1.

Referring to the drawings, l designates the well-tube, which is driven in the ground in the usual manner, and extended downward in the well tube` is a liquidpressure tube 2, which is closed at the lower end by a cap 3. Mounted on the lower portion of the tube 2 is a head comprising two cup-shaped members 4 5. As here shown, these members 4 5 are conoidal and arranged in reverse directions-that is, with their larger ends adjacent to each other. These ends are spaced apart to form an annular port 6. It is designed that this port 6 may be regulated as to width, and therefore the members 4 and 5 are adjustable toward and from each other on the tube 2. It will be noted that the facing .walls of the members 4 and 5 are inclined upward and outward, so that the fluid-pressure acts in an upward direction.

As a means for'causing the adjustment the the member 4 has an interiorly-threaded extension 7 for engaging an exterior thread 8 on the tube 2, and this thread 8 is also engaged by a j ain-nut 9. The member 5 has an interiorly threaded downwardly extended frame portion 1() engaging an exterior thread 11 on the tube 2, and this extended portion 1() is engaged by a jam-nut 12. The cupshaped or conoidal members form a comparatively large air-chamber 13, which receives air from the tube 2 through a plurality of ports 14, formed in said tube within the chamber.

In the operation the iiuid under pressure is passed down through the tube 2 and enters the chamber 13, from which it discharges in the well-tube through the annular port 6, thus creating an upward suction in the pipe, wlich serves to raise the liquid in the Welltu e.

I-Iaving thus described my invention, I claim as new and desire to secure by Letters Patent- The combinationwith awell-tube of a fluidpressure tube extending into the well-tube and having a plurality of perforations near the lower end, a cap having screw-threaded engagement with the lower end of the pressure-tube for closing the same, a head comprising cup-shaped members having screwthreaded engagement with said pressuretube, the adjacent open ends of said members being spaced apart to form an annular port, the walls thereof being inclined upward and outward, the said port being centrally arranged with respect to the perforation and jam-nuts for locking the said members as adjusted.

In testimony whereof I have signed my name tou this specification in the presence of two subscribing witnesses.

CHARLES A. DRYER.

Witnesses:

BEN. J. BURKE, E. W. MGQUAY. 

